Definitely, get Tech-Sights front and rear.
Although I didn't know it at the time, about 2 years ago, when I bought my first firearm (at the young age of 54!), I got lucky, having already having learned about, ordered, and received them, a few days before my rifle arrived.
I haven't looked back.
I've also discovered, the folks at Tech-Sights are really nice. When I got my Mini-14, they didn't have any of their sights in-stock. However, a couple months later, they emailed me to let me know that they had just finished a small production run of Mini-14 sights, but they expected to sell out quickly. They said, if I still wanted one, just let them know, and they'd hold one for a few days, until I called.
I emailed them in the affirmative and called the next morning.
My $0.02, Steve in Memphis